US government officials revealed in February that Russia was developing a nuclear anti-satellite weapon of some kind, but offered few details. Bart Hendrickx examines the state of Russian research on the potential use of nuclear weapons in orbit as anti-satellite devices.

As commercial launch activity continues to increase, the FAA office regulating launches is straining to keep up. Jeff Foust reports that some in industry, as well as an FAA advisory committee, think part of the solution is to move that office out of the FAA.

Launch vehicles that can take off from and land on runways have long been a dream for space engineers and enthusiasts, but have never gotten off the ground. John Hollaway describes why they remain essential and how they might be developed.

Astronomers have discovered thousands of exoplanets over the last three decades, a remarkable menagerie of worlds. Jeff Foust reviews a book by one scientists that describes the efforts to both search for exoplanets and look for one that may be inhabitable or inhabited.

Ongoing space access problems forced Europe to use a Falcon 9 to launch a pair of Galileo navigation satellites recently. Jeff Foust reports that the "launcher crisis" plaguing Europe shows signs of ending.

As soon as Monday night Boeing will launch its CST-100 Starliner on its first crewed flight. Wendy Whitman Cobb discusses why this long-delayed flight is nonetheless a key development for commercial spaceflight.